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Functional Oxides and Molecules

Our recent research topics are focussed on:

functional oxide filmsThin film oxide dielectric, ferroelectric and superconducting systems are deposited via magnetron sputter technology, PLD and MOCVD (cooperations). The focus of this work lies on the optimization of the deposition process for various applications ranging from energy applications to information and (bio-)sensor technologies.
multiferroics and ferroelectric devicesThe ferroelectric properties (among others ferroelectric-dielectric transition-temperature, permittivity and tunability) of various oxides (e.g. (Ba,Sr)TiO3 or (K,Na)NbO3) are engineered via strain caused by the lattice mismatch between substrate and film.
vortex matter and fluxonic devicesIn the framework of the European projects quantized flux (vortices) are manipulated in nanostructured HTS-films at dc to microwave frequencies leading to novel fluxonic concepts. Furthermore, the critical properties of coated conductors are analyzed in a special cryoelectronic setup for high current (up to 600A) experiments.
molecular electronics and interfacesPreparation, characterization and optimization of (self-assembling) molecular layers, mixed molecular layers and molecular multilayers for information and (bio-)sensor technologies. Developement of novel sensor strategies based on planar capacitive detectors, FETs and SAWs.

Team

Yang Dai

Yang Dai, PhD student

email:  y.dai@fz-juelich.de
tel: +49 (0)2461 61 9844
Research activities: microwave properties of ferroelectric oxide films, strained oxide films

Rolf Kutzner

Rolf Kutzner

email:  r.kutzner@fz-juelich.de
tel: +49 (0)2461 61 2879
Research activities: thin film deposition, technical support and optimization of experimental setups

Sijia Liang

Sijia Liang, Doctoral Researcher

email:  si.liang@fz-juelich.de
tel: +49 (0)2461 61 1411
Research activities: Functional oxide films, engineering via strain, SAW devices

Alexandr Markov

Alexandr Markov, Doctoral Researcher

email:  a.markov@fz-juelich.de
tel: +49 (0)2461 61 9830
Research activities: Organic films, self assembling monolayers, SAW and BAW

Juanmiao Wang

Junmiao Wang, Master student

email:  j.wang@fz-juelich.de
tel: +49 (0)2461 61 9844
Research activities: surface characterization and modification, streaming potential experiments

Niko Wolf

Nikolaus Wolf, Master student

email:  n.wolf@fz-juelich.de
tel: +49 (0)2461 61 9844
Research activities: Deposition and cryoelectronic characterization of molecular layers, developement of molecular electronic concepts

Xiaobo Yuan

Xiaobo Yuan, Doctoral Researcher

email:  x.yuan@fz-juelich.de
tel: +49 (0)2461 61 1411
Research activities: Organic films, self assembling monolayers, surface potential analysis

Prof. Dr. Roger Wördenweber

Prof. Dr. Roger Wördenweber

tel.:  +49-2461-61-2365
e-mail: r.woerdenweber@fz-juelich.de

Group leader

Former Members and Guests (since 2010)

Dr. Biya CaiDoctoral Researcher, until 2016
Junmiao WangMaster student, until 2016
Dr. Eugen HollmannSenior Scientist, until 2016
Dr. Thomas GrellmannMaster, Doctoral Researcher, PostDoc until 2015
Dr. Kyrylo GrebenMaster, Doctoral Researcher, PostDoc until 2015
Dr. Mohamed Osman Abdel-Hamed Guest, 2013
Tino EhligMaster student, 2012-2013
Matthew KiokGuest, 2012
Brian ChungGuest, 2011
Valiantsina BelanohavaMaster student, 2010-2011

 

Additional Information

Contact:

Prof. Dr. Roger Wördenweber

Tel.:  +49-2461-61-2365
e-mail: r.woerdenweber@fz-juelich.de

Further Information

Research Websites:
Functional oxides
Molecular layers

Publications
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Experiments:
Cryogenic Break Junction
Streaming Potential Experiment
Critical Current Setup for Coated Conductors (600A)

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Projekts:
national project: SupraTech
EU project: 'NanoSC'

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Our Team:

Team 'Functional Oxides' 2016Activity 2016

Team 'Functional Oxides'Barbecue 2014


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